2024-01-21 10:41:04

by Luca Weiss

[permalink] [raw]
Subject: [PATCH v2 0/2] Add GPU support for MSM8226 (Adreno A305B)

Add the necessary bits to bring up the GPU on msm8226.

Tested on apq8026-lg-lenok.

Signed-off-by: Luca Weiss <[email protected]>
---
Changes in v2:
- Drop applied patch
- Use "if (a305b || a306)" for writing REG_A3XX_RBBM_CLOCK_CTL
- Pick up tags
- Link to v1: https://lore.kernel.org/r/[email protected]

---
Luca Weiss (2):
dt-bindings: display/msm: gpu: Allow multiple digits for patchid
drm/msm/adreno: Add A305B support

Documentation/devicetree/bindings/display/msm/gpu.yaml | 6 +++---
drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 13 ++++++++++---
drivers/gpu/drm/msm/adreno/adreno_device.c | 15 +++++++++++----
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 +++++
4 files changed, 29 insertions(+), 10 deletions(-)
---
base-commit: bda7a2e04984237bc14ade7c9660f76fbc035686
change-id: 20231130-msm8226-gpu-c2ff8473a9ff

Best regards,
--
Luca Weiss <[email protected]>



2024-01-21 10:41:11

by Luca Weiss

[permalink] [raw]
Subject: [PATCH v2 1/2] dt-bindings: display/msm: gpu: Allow multiple digits for patchid

Some GPUs like the Adreno A305B has a patchid higher than 9, in this
case 18. Make sure the regexes can account for that.

Acked-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Luca Weiss <[email protected]>
---
Documentation/devicetree/bindings/display/msm/gpu.yaml | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index b019db954793..40b5c6bd11f8 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -23,7 +23,7 @@ properties:
The driver is parsing the compat string for Adreno to
figure out the gpu-id and patch level.
items:
- - pattern: '^qcom,adreno-[3-7][0-9][0-9]\.[0-9]$'
+ - pattern: '^qcom,adreno-[3-7][0-9][0-9]\.[0-9]+$'
- const: qcom,adreno
- description: |
The driver is parsing the compat string for Imageon to
@@ -127,7 +127,7 @@ allOf:
properties:
compatible:
contains:
- pattern: '^qcom,adreno-[3-5][0-9][0-9]\.[0-9]$'
+ pattern: '^qcom,adreno-[3-5][0-9][0-9]\.[0-9]+$'

then:
properties:
@@ -203,7 +203,7 @@ allOf:
properties:
compatible:
contains:
- pattern: '^qcom,adreno-[67][0-9][0-9]\.[0-9]$'
+ pattern: '^qcom,adreno-[67][0-9][0-9]\.[0-9]+$'

then: # Starting with A6xx, the clocks are usually defined in the GMU node
properties:

--
2.43.0


2024-01-21 10:41:23

by Luca Weiss

[permalink] [raw]
Subject: [PATCH v2 2/2] drm/msm/adreno: Add A305B support

Add support for the Adreno 305B GPU that is found in MSM8226(v2) SoC.
Previously this was mistakenly claimed to be supported but using wrong
a configuration.

In MSM8226v1 there's also a A305B but with chipid 0x03000510 which
should work with the same configuration but due to lack of hardware for
testing this is not added.

Reviewed-by: Konrad Dybcio <[email protected]>
Signed-off-by: Luca Weiss <[email protected]>
---
drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 13 ++++++++++---
drivers/gpu/drm/msm/adreno/adreno_device.c | 15 +++++++++++----
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 +++++
3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
index c86b377f6f0d..5273dc849838 100644
--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c
@@ -134,6 +134,13 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
/* Set up AOOO: */
gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO_EN, 0x0000003c);
gpu_write(gpu, REG_A3XX_VBIF_OUT_AXI_AOOO, 0x003c003c);
+ } else if (adreno_is_a305b(adreno_gpu)) {
+ gpu_write(gpu, REG_A3XX_VBIF_IN_RD_LIM_CONF0, 0x00181818);
+ gpu_write(gpu, REG_A3XX_VBIF_IN_WR_LIM_CONF0, 0x00181818);
+ gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x00000018);
+ gpu_write(gpu, REG_A3XX_VBIF_OUT_WR_LIM_CONF0, 0x00000018);
+ gpu_write(gpu, REG_A3XX_VBIF_DDR_OUT_MAX_BURST, 0x00000303);
+ gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003);
} else if (adreno_is_a306(adreno_gpu)) {
gpu_write(gpu, REG_A3XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x0003);
gpu_write(gpu, REG_A3XX_VBIF_OUT_RD_LIM_CONF0, 0x0000000a);
@@ -230,7 +237,7 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A3XX_UCHE_CACHE_MODE_CONTROL_REG, 0x00000001);

/* Enable Clock gating: */
- if (adreno_is_a306(adreno_gpu))
+ if (adreno_is_a305b(adreno_gpu) || adreno_is_a306(adreno_gpu))
gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xaaaaaaaa);
else if (adreno_is_a320(adreno_gpu))
gpu_write(gpu, REG_A3XX_RBBM_CLOCK_CTL, 0xbfffffff);
@@ -333,7 +340,7 @@ static int a3xx_hw_init(struct msm_gpu *gpu)
AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB1_START(2) |
AXXX_CP_QUEUE_THRESHOLDS_CSQ_IB2_START(6) |
AXXX_CP_QUEUE_THRESHOLDS_CSQ_ST_START(14));
- } else if (adreno_is_a330(adreno_gpu)) {
+ } else if (adreno_is_a330(adreno_gpu) || adreno_is_a305b(adreno_gpu)) {
/* NOTE: this (value take from downstream android driver)
* includes some bits outside of the known bitfields. But
* A330 has this "MERCIU queue" thing too, which might
@@ -559,7 +566,7 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev)
goto fail;

/* if needed, allocate gmem: */
- if (adreno_is_a330(adreno_gpu)) {
+ if (adreno_is_a330(adreno_gpu) || adreno_is_a305b(adreno_gpu)) {
ret = adreno_gpu_ocmem_init(&adreno_gpu->base.pdev->dev,
adreno_gpu, &a3xx_gpu->ocmem);
if (ret)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 2ce7d7b1690d..f2768e52ed12 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -55,10 +55,17 @@ static const struct adreno_info gpulist[] = {
.inactive_period = DRM_MSM_INACTIVE_PERIOD,
.init = a2xx_gpu_init,
}, {
- .chip_ids = ADRENO_CHIP_IDS(
- 0x03000512,
- 0x03000520
- ),
+ .chip_ids = ADRENO_CHIP_IDS(0x03000512),
+ .family = ADRENO_3XX,
+ .fw = {
+ [ADRENO_FW_PM4] = "a330_pm4.fw",
+ [ADRENO_FW_PFP] = "a330_pfp.fw",
+ },
+ .gmem = SZ_128K,
+ .inactive_period = DRM_MSM_INACTIVE_PERIOD,
+ .init = a3xx_gpu_init,
+ }, {
+ .chip_ids = ADRENO_CHIP_IDS(0x03000520),
.family = ADRENO_3XX,
.revn = 305,
.fw = {
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index bc14df96feb0..d3c41af706df 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -256,6 +256,11 @@ static inline bool adreno_is_a305(const struct adreno_gpu *gpu)
return adreno_is_revn(gpu, 305);
}

+static inline bool adreno_is_a305b(const struct adreno_gpu *gpu)
+{
+ return gpu->info->chip_ids[0] == 0x03000512;
+}
+
static inline bool adreno_is_a306(const struct adreno_gpu *gpu)
{
/* yes, 307, because a305c is 306 */

--
2.43.0